An API 3000 triple-quadrupole instrument and a QSTAR Pulsar quadrupole time-of-flight (TOF) mass spectrometer were compared for the determination of phosphopeptides by precursor ion scanning in both the positive and negative nanoelectrospray ionization modes. The limits of detection for synthetic ph
The fragmentation of the ions of nonan-4-one: A study by triple quadrupole mass spectrometry
โ Scribed by R. A. Yost; C. G. Enke
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- English
- Weight
- 629 KB
- Volume
- 16
- Category
- Article
- ISSN
- 1076-5174
No coin nor oath required. For personal study only.
โฆ Synopsis
Abstract
The fragmentation pathways for the ions generated by electron impact from nonanโ4โone have been studied using low energy collision induced dissociation in a triple quadrupole mass spectrometer. Over 400 fragmentation pathways have been identified. These results are compared with data from earlier ion kinetic energy spectrometry studies of nonanโ4โone which employed metastable decompositions.
๐ SIMILAR VOLUMES
## Abstract A detailed exploration of the application of triple quadrupoles in sequential mass spectrometry has been carried out using dimethylmorpholinophosphoramidate as a case study of an ion of relatively high mass and complex structure. Both metastable ion decomposition and dissociation by low
## Abstract A comprehensive study on the fragmentation pattern of the antimicrobial growth promoter avilamycin A was conducted in a quadrupole ion trap mass spectrometer equipped with an electrospray ionization (ESI) source. Performing multipleโstage experiments on the deprotonated molecule (__m__/
## Abstract We report the first positive chemical ionization (PCI) fragmentation mechanisms of phthalates using tripleโquadrupole mass spectrometry and __ab initio__ computational studies using density functional theories (DFT). Methane PCI spectra showed abundant [M + H]^+^, together with [M + C~2
## Abstract The use of a hybrid triple quadrupoleโlinear ion trap (QqQ~LIT~) mass spectrometer system for a comprehensive study of fragmentation mechanisms is described. The anxiolytic drug, buspirone, was chosen as a model compound for this study. With the advent of a QqQ~LIT~ instrument, both the